{"id":"CVE-2026-43294","summary":"drm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: renesas: rz-du: mipi_dsi: fix kernel panic when rebooting for some panels\n\nSince commit 56de5e305d4b (\"clk: renesas: r9a07g044: Add MSTOP for RZ/G2L\")\nwe may get the following kernel panic, for some panels, when rebooting:\n\n  systemd-shutdown[1]: Rebooting.\n  Call trace:\n   ...\n   do_serror+0x28/0x68\n   el1h_64_error_handler+0x34/0x50\n   el1h_64_error+0x6c/0x70\n   rzg2l_mipi_dsi_host_transfer+0x114/0x458 (P)\n   mipi_dsi_device_transfer+0x44/0x58\n   mipi_dsi_dcs_set_display_off_multi+0x9c/0xc4\n   ili9881c_unprepare+0x38/0x88\n   drm_panel_unprepare+0xbc/0x108\n\nThis happens for panels that need to send MIPI-DSI commands in their\nunprepare() callback. Since the MIPI-DSI interface is stopped at that\npoint, rzg2l_mipi_dsi_host_transfer() triggers the kernel panic.\n\nFix by moving rzg2l_mipi_dsi_stop() to new callback function\nrzg2l_mipi_dsi_atomic_post_disable().\n\nWith this change we now have the correct power-down/stop sequence:\n\n  systemd-shutdown[1]: Rebooting.\n  rzg2l-mipi-dsi 10850000.dsi: rzg2l_mipi_dsi_atomic_disable(): entry\n  ili9881c-dsi 10850000.dsi.0: ili9881c_unprepare(): entry\n  rzg2l-mipi-dsi 10850000.dsi: rzg2l_mipi_dsi_atomic_post_disable(): entry\n  reboot: Restarting system","modified":"2026-07-08T08:13:30.286482495Z","published":"2026-05-08T13:11:17.483Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43294.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/41cda667ffc5074c56279c632b0c20024da6ecdd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/64aa8b3a60a825134f7d866adf05c024bbe0c24c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79f42487ed60d0d5ffce97c3bb98f80c3d17735a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43294.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43294"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7a043f978ed1433bddb088a732e9bb91501ebd76"},{"fixed":"79f42487ed60d0d5ffce97c3bb98f80c3d17735a"},{"fixed":"41cda667ffc5074c56279c632b0c20024da6ecdd"},{"fixed":"64aa8b3a60a825134f7d866adf05c024bbe0c24c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43294.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43294.json"}}],"schema_version":"1.7.5"}